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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of EMC VI-200, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of EMC VI-200 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of EMC VI-200. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of EMC VI-200 should contain:
- informations concerning technical data of EMC VI-200
- name of the manufacturer and a year of construction of the EMC VI-200 item
- rules of operation, control and maintenance of the EMC VI-200 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of EMC VI-200 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of EMC VI-200, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the EMC service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of EMC VI-200.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the EMC VI-200 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 18 of 88 +IN GA TE IN GA TE OUT –IN +OUT +S TRIM –S –OUT C2 C1 C2 C3 C3 C1 = 100 μ F C2 = 4,700 pF C3 = 0.01 μ F Conditions: Light Load = 3 [...]
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Page 2
Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 19 of 88 9. EMC Considerations Common-Mode Noise with Common-Mode Choke. There ar e no special precautions that must be exer cised in the design of [...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 20 of 88 9. EMC Considerations L1 C4 C1 = 100 μ F C2 a – C2 b = 4,700 pF (Vicor Part # 01000) C3 a – C3 b = 0.01 μ F (Vicor P ar t # 04872) C4[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 21 of 88 9. EMC Considerations Differential and Common-Mode Filter with More than One Module . No special precautions ar e needed when using two or [...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 22 of 88 3 Amp Load 15 Amp Load 30 Amp Load 9. EMC Considerations Differential-Mode Noise Filter . Differ ential-mode conducted noise current is the[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 23 of 88 9. EMC Considerations RADIA TED NOISE Radiated noise may be either electric field or magnetic field. Magnetic radiation is caused by high d[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 24 of 88 C FET C Rectifier I CM C FET C Rectifier C External C Exter nal I CM Primary Secondar y V p V p V p Baseplate I DM Ycaps Ycaps Figure 9–8[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 25 of 88 9. EMC Considerations No Additional Filter 2% p-p (T ypical) 1% p-p (T ypical) 0.2% p-p (T ypical) Low ESR Output Cap. 1% p-p (T ypical) 0.[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 26 of 88 9. EMC Considerations NOTE : A low ESR capacitor should be used on the output, preferably tantalum. 3 Amp Load 15 Amp Load 30 Amp Load +IN [...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 27 of 88 9. EMC Considerations C1 = 100 µF C2 a – C2 b = 4,700 pF (Vicor P ar t # 01000) C3 a – C3 b = 0.01 µF (Vicor P ar t # 04872) C4 = 270[...]
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Design Guide & Applications Manual For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies vicorpower .com 800-735-6200 Applications Engineering 1- 800-927-9474 Rev . 2.1 Page 28 of 88 9. EMC Considerations RAM / MI-RAM OPERA TION The RAM / MI-RAM attenuates output noise in two ways. First, an LC filter in the RAM / MI-RAM[...]